[an error occurred while processing this directive]
���¿��ټ��� �߼�����
   ��ҳ  �ڿ�����  ��ί��  Ͷ��ָ��  �ڿ�����  ��������  �� �� ��  ��ϵ����
�������պ����ѧѧ�� 2009, Vol. 35 Issue (12) :1451-1454    DOI:
���� ����Ŀ¼ | ����Ŀ¼ | ������� | �߼����� << | >>
�� ��, ����, �����*
�������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100191
Impulsive loading of simply supported lattice truss core sandwich beams with axial restraints
Liu Hua, Zhu Xiaoqin, Yang Jialing*
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

Download: PDF (0KB)   HTML 1KB   Export: BibTeX or EndNote (RIS)      Supporting Info
ժҪ ���ܵ���������غɵ����򲻿��Ƶ�����ϼ�о��֧�������˸����Զ�����Ӧ���۷����͵���������Ԫ����.���ȸ����˼�о����������ڽ������������е�����Ӷȵ�����Ԥ��ֵ,��������Ԫ��������˱Ƚ�,����Ԫ��������������������������������Ԥ����֮��,����Ԫ�����֧�������ת�������������������������Ԥ�����ӽ�.Ȼ�󿼲��˵�����ϼ�о���Ŀ�������ܺ�����Ч��.�������:��о��������ӶȺ����Ժ�ɢ�ܶԸ�Ԫ�����нǼ�����ܶ�ʮ������,��ƺ���ļ�о�����кܺõ�����Ч���Ϳ��������.
Email Alert
�ؼ����� �������   ��о��   ������Ӧ   ���   ����     
Abstract�� The dynamic response of a simply supported lattice truss core sandwich beam with axial restraints subjected to uniform transverse impulsive loadings was studied through rigid-plastic analytical model and elastic-plastic finite element (FE) calculation. Firstly, the maximum deflections of the sandwich beam predicted by both circumscribing and inscribing yield loci were given and compared with those predicted by finite element method. It is found that the FE predictions of the maximum deflections are between those predicted by the circumscribing and inscribing yield loci. The FE predictions of the maximum angle of rotation at the simply supported ends approach the analytical model employing the circumscribing yield locus. Then the shock resistance and energy-absorbing capability of the sandwich beam were studied. According to the FE analysis, it is indicated that the maximum deflection and plastic energy absorption of the sandwich beam are sensitive to the relative density and inclination angle of the sandwich core member, and the properly designed sandwich beams have superior energy-absorbing capability and shock resistance.
Keywords�� lattice material   sandwich beam   dynamic response   shock   energy absorption     
Received 2008-11-24;

������Ȼ��ѧ����������Ŀ(10602005); ������ѧ�������ص�ѧ��������Ŀ

About author: �� ��(1972-),Ů,���ճ�����,������,liuhuarui@buaa.edu.cn.
�� ��, ��С��, �����.����غ���������Լ���ĵ�����ϼ�о��֧��[J]  �������պ����ѧѧ��, 2009,V35(12): 1451-1454
Liu Hua, Zhu Xiaoqin, Yang Jialing.Impulsive loading of simply supported lattice truss core sandwich beams with axial restraints[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(12): 1451-1454
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2009/V35/I12/1451
Copyright 2010 by �������պ����ѧѧ��